HIGHCVE-2026-40589Published Modified CNA GitHub_M
CVE-2026-40589: FreeScout has Customer Edit Cross-Mailbox Email Takeover
FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.214, a low-privileged agent can edit a visible customer and add an email address already owned by a hidden customer in another mailbox. The server discloses the hidden customer’s name and profile URL in the success flash, reassigns the hidden email to the visible customer, and rebinds hidden-mailbox conversations for that email to the visible customer. Version 1.8.214 fixes the issue.
Metrics
- CVSS v3.1
- 7.6
- Severity
- HIGH
- Fixed in
- —
- Affected Products
- 1
Affected packages
- freescout-help-desk / freescout< 1.8.214
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L